7-WAY FLAT BLADE MALE PLUG

7-WAY FLAT BLADE MALE PLUG

The male plug is used on every light duty trailer out there. It controls all the lights and in most cases the trailer brakes as well. This plug is only used in the light duty world. The heavy duty trucks have a 7 way but it utilizes round blades on the plugs; not flat. It has a set screw to hold the insulated bundle of wires keeping them from getting pulled out. The internals of the plug uses set screws to wire up each colored wire correctly. This plug is used on the trailer side of the wiring to be plugged into the receptacle on the truck side transferring power, and braking power from the truck to the trailer. 

PLEASE NOTE: Whenever you're swapping one of these plugs out; it's imperative to take a picture of what color wire goes to what terminal in order to make sure it functions correctly once the new plug is wired up. If you're not familiar with how they are wired; the picture will help you wire it up correctly rather than pulling it apart and not knowing what color wire goes to what terminal.